package cn.com.surker.interceptor;

import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 用于解决跨域调用的
 * @author luotao
 * @date 2022/3/18
 */
@Component
public class CorsFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {

	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
		throws IOException, ServletException {

		HttpServletResponse response = (HttpServletResponse) res;
		response.setHeader("Access-Control-Allow-Origin", "*");
		response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
		response.setHeader("Access-Control-Max-Age", "3600");
		response.setHeader("Access-Control-Allow-Headers",
			"access-control-allow-origin, authority, content-type, version-info, X-Requested-With");

		chain.doFilter(req, res);
	}

	@Override
	public void destroy() {

	}

}
